<s>
John	B-Algorithm
McGinness	I-Algorithm
materially	O
contributed	O
to	O
the	O
modern	O
field	O
of	O
organic	O
electronics	O
.	O
</s>
<s>
In	O
1972	O
,	O
while	O
working	O
at	O
the	O
Metallurgy	O
department	O
at	O
Youngstown	O
State	O
University	O
,	O
McGinness	O
suggested	O
that	O
electronic	O
conduction	O
in	O
melanins	O
(	O
polyacetylene	B-Language
,	O
polypyrrole	B-Algorithm
,	O
and	O
polyaniline	B-Algorithm
"	O
blacks	O
"	O
and	O
their	O
copolymers	O
)	O
is	O
analogous	O
to	O
conduction	O
in	O
amorphous	O
solids	O
such	O
as	O
the	O
chalcogenide	O
glasses	O
.	O
</s>
<s>
That	O
is	O
,	O
it	O
involves	O
such	O
things	O
as	O
mobility	O
gaps	O
,	O
phonon-assisted	O
hopping	O
,	O
polarons	O
,	O
quantum	O
tunneling	O
,	O
and	O
so	O
forth	O
.	O
</s>
<s>
With	O
the	O
notable	O
exception	O
of	O
Bolto	O
et	O
al.	O
,	O
who	O
had	O
reported	O
high	O
conductivity	O
in	O
iodine-doped	O
polypyrrole	B-Algorithm
,	O
few	O
but	O
melanoma	O
researchers	O
had	O
much	O
reason	O
to	O
look	O
at	O
the	O
electronic	O
properties	O
of	O
such	O
rigid-backbone	O
polymer	O
"	O
blacks	O
"	O
.	O
</s>
